Preferred Stock	6 Months Ended
Sep. 30, 2011
Preferred Stock/Stockholders' Deficit [Abstract]
Preferred Stock	8. Preferred Stock *Convertible preferred stock* In July 2011, we filed an Amended and Restated Certificate of Incorporation with the State of Delaware, which increased the total number of shares that we are authorized to issue from 117,116,801 shares to 137,471,535 shares, 80,000,000 of which are designated as common stock, and 57,471,535 of which are designated as preferred stock. Of the total shares of preferred stock, 17,006,275 are designated as Series A Preferred Stock, 16,410,526 are designated as Series B Preferred Stock, 15,621,609 are designated as Series C Preferred Stock and 8,433,125 are designated as Series D Preferred Stock. The number of authorized shares of Common Stock may be increased or decreased (but not below the number of shares of Common Stock then outstanding) by the affirmative vote of the holders of a majority of the Company’s Preferred Stock and Common Stock (voting together as a single class on an as-converted to Common Stock basis). A complete description of the rights, preferences, privileges and restrictions of our common stock and the Series A, Series B, Series C and Series D convertible preferred stock is included in the Amended and Restated Certificate of Incorporation, as amended. The outstanding shares of convertible preferred stock are not redeemable. None of our convertible preferred stock is considered permanent equity based on the guidance of SEC Accounting Series Release No. 268, “Presentation in Consolidated Financial Statements of Redeemable Preferred Stocks.” The significant terms of outstanding Series A, Series B, Series C and Series D convertible preferred stock are as follows: Conversion — Each share of convertible preferred stock is convertible, at the option of the holder, initially, into one share of common stock (subject to adjustments for events of dilution). Each share of convertible preferred stock will automatically be converted upon the earlier of (i) the closing of an underwritten public offering of our common stock with aggregate gross proceeds that are at least $30,000,000 or (ii) the consent of the holders of a 65% majority of outstanding shares of convertible preferred stock, voting together as a single class, on an as-converted to common stock basis. The Company’s preferred stock agreements contain certain anti-dilution provisions, whereby if the Company issues additional shares of capital stock for an effective price lower than the conversion price for a series of preferred stock immediately prior to such issue, then the existing conversion price of such series of preferred stock will be reduced. The Company determined that while its convertible preferred stock contains certain anti-dilution features, the conversion feature embedded within its convertible preferred stock does not require bifurcation under the guidance of FASB ASC 815, Derivatives and Hedging Activities. Liquidation preference — Upon any liquidation, winding up or dissolution of us, whether voluntary or involuntary (a “Liquidation Event”), before any distribution or payment shall be made to the holders of any common stock, the holders of convertible preferred stock shall, on a pari passu basis, be entitled to receive by reason of their ownership of such stock, an amount per share of Series A convertible preferred stock equal to $1.065 (as adjusted for stock splits, recapitalizations and the like) plus all declared and unpaid dividends (the “Series A Preferred Liquidation Preference”), an amount per share of Series B convertible preferred stock equal to $0.7483 (as adjusted for stock splits, recapitalizations and the like) plus all declared and unpaid dividends (the “Series B Preferred Liquidation Preference”), an amount per share of Series C convertible preferred stock equal to $1.5677 (as adjusted for stock splits, recapitalizations and the like), and an amount per share of Series D convertible preferred stock equal to $3.5677 (as adjusted for stock splits, recapitalizations and the like). However, if upon any such Liquidation Event, our assets shall be insufficient to make payment in full to all holders of convertible preferred stock of their respective liquidation preferences, then the entire assets of ours legally available for distribution shall be distributed with equal priority between the holders based upon the amounts such series was to receive. Any excess assets, after payment in full of the liquidation preferences to the convertible preferred stockholders, are then allocated to the holders of common and preferred stockholders, pro-rata, on an as-if-converted to common stock basis. Dividends — If and when declared by the Board of Directors, the holders of Series A, Series B, Series C and Series D convertible preferred stock, on a pari passu basis, will be entitled to receive non-cumulative dividends at a rate of 6% per annum in preference to any dividends on common stock (subject to adjustment for certain events). The holders of Series A, Series B, Series C and Series D convertible preferred stock are also entitled to receive with common stockholders, on an as-if-converted basis, any additional dividends issued by us. Voting rights — Generally, preferred stockholders have one vote for each share of common stock that would be issuable upon conversion of preferred stock. Voting as a separate class, and on an as-if-converted to common stock basis, the Series A convertible preferred stockholders are entitled to elect two members of the Board of Directors and the holders of Series B convertible preferred stockholders are entitled to elect one member of the Board of Directors. The Series C and Series D convertible preferred stockholders are not entitled to elect a member of the Board of Directors. The holders of common stock, voting as a separate class, are entitled to elect one member of the Board of Directors. The remaining directors are elected by the preferred stockholders and common stockholders voting together as a single class on an as-if-converted to common stock basis.

8. Preferred Stock

Convertible preferred stock

In July 2011, we filed an Amended and Restated Certificate of Incorporation with the State of Delaware, which increased the total number of shares that we are authorized to issue from 117,116,801 shares to 137,471,535 shares, 80,000,000 of which are designated as common stock, and 57,471,535 of which are designated as preferred stock. Of the total shares of preferred stock, 17,006,275 are designated as Series A Preferred Stock, 16,410,526 are designated as Series B Preferred Stock, 15,621,609 are designated as Series C Preferred Stock and 8,433,125 are designated as Series D Preferred Stock. The number of authorized shares of Common Stock may be increased or decreased (but not below the number of shares of Common Stock then outstanding) by the affirmative vote of the holders of a majority of the Company’s Preferred Stock and Common Stock (voting together as a single class on an as-converted to Common Stock basis).

A complete description of the rights, preferences, privileges and restrictions of our common stock and the Series A, Series B, Series C and Series D convertible preferred stock is included in the Amended and Restated Certificate of Incorporation, as amended. The outstanding shares of convertible preferred stock are not redeemable. None of our convertible preferred stock is considered permanent equity based on the guidance of SEC Accounting Series Release No. 268, “Presentation in Consolidated Financial Statements of Redeemable Preferred Stocks.” The significant terms of outstanding Series A, Series B, Series C and Series D convertible preferred stock are as follows:

Conversion — Each share of convertible preferred stock is convertible, at the option of the holder, initially, into one share of common stock (subject to adjustments for events of dilution). Each share of convertible preferred stock will automatically be converted upon the earlier of (i) the closing of an underwritten public offering of our common stock with aggregate gross proceeds that are at least $30,000,000 or (ii) the consent of the holders of a 65% majority of outstanding shares of convertible preferred stock, voting together as a single class, on an as-converted to common stock basis. The Company’s preferred stock agreements contain certain anti-dilution provisions, whereby if the Company issues additional shares of capital stock for an effective price lower than the conversion price for a series of preferred stock immediately prior to such issue, then the existing conversion price of such series of preferred stock will be reduced. The Company determined that while its convertible preferred stock contains certain anti-dilution features, the conversion feature embedded within its convertible preferred stock does not require bifurcation under the guidance of FASB ASC 815, Derivatives and Hedging Activities.

Liquidation preference — Upon any liquidation, winding up or dissolution of us, whether voluntary or involuntary (a “Liquidation Event”), before any distribution or payment shall be made to the holders of any common stock, the holders of convertible preferred stock shall, on a pari passu basis, be entitled to receive by reason of their ownership of such stock, an amount per share of Series A convertible preferred stock equal to $1.065 (as adjusted for stock splits, recapitalizations and the like) plus all declared and unpaid dividends (the “Series A Preferred Liquidation Preference”), an amount per share of Series B convertible preferred stock equal to $0.7483 (as adjusted for stock splits, recapitalizations and the like) plus all declared and unpaid dividends (the “Series B Preferred Liquidation Preference”), an amount per share of Series C convertible preferred stock equal to $1.5677 (as adjusted for stock splits, recapitalizations and the like), and an amount per share of Series D convertible preferred stock equal to $3.5677 (as adjusted for stock splits, recapitalizations and the like). However, if upon any such Liquidation Event, our assets shall be insufficient to make payment in full to all holders of convertible preferred stock of their respective liquidation preferences, then the entire assets of ours legally available for distribution shall be distributed with equal priority between the holders based upon the amounts such series was to receive. Any excess assets, after payment in full of the liquidation preferences to the convertible preferred stockholders, are then allocated to the holders of common and preferred stockholders, pro-rata, on an as-if-converted to common stock basis.

Dividends — If and when declared by the Board of Directors, the holders of Series A, Series B, Series C and Series D convertible preferred stock, on a pari passu basis, will be entitled to receive non-cumulative dividends at a rate of 6% per annum in preference to any dividends on common stock (subject to adjustment for certain events). The holders of Series A, Series B, Series C and Series D convertible preferred stock are also entitled to receive with common stockholders, on an as-if-converted basis, any additional dividends issued by us.